Finding the Fourth Proportional to 5,119,720.40, 7,668,521.40 and 4,234,984.40
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Solution
The fourth proportional to 5,119,720.40, 7,668,521.40 and 4,234,984.40 is: 6,343,328.53
Step by Step Solution
- Step 1: Write the proportion equation
5,119,720.40 : 7,668,521.40 = 4,234,984.40 : x - Step 2: Convert to fraction form
5,119,720.40/7,668,521.40 = 4,234,984.40/x - Step 3: Cross multiply
5,119,720.40x = 7,668,521.40 × 4,234,984.40 - Step 4: Simplify right side
5,119,720.40x = 32,476,068,500,066.16 - Step 5: Solve for x
x = 32,476,068,500,066.16/5,119,720.40 - Step 6: Final answer
x = 6,343,328.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.